Finding the Fourth Proportional to 52,738.24, 72,775.98 and 28,860.30

Step by Step Solution

1. Step 1: Write the proportion equation
   52,738.24 : 72,775.98 = 28,860.30 : x
2. Step 2: Convert to fraction form
   52,738.24/72,775.98 = 28,860.30/x
3. Step 3: Cross multiply
   52,738.24x = 72,775.98 × 28,860.30
4. Step 4: Simplify right side
   52,738.24x = 2,100,336,534.42
5. Step 5: Solve for x
   x = 2,100,336,534.42/52,738.24
6. Step 6: Final answer
   x = 39,825.69